Samsung BN44-01078A (BN4401078A) Power Supply Board - QN50LS03TAFXZA

The Samsung BN44-01078A (BN4401078A) is an OEM Power Supply Board compatible with the Samsung 50" The Frame QLED QN50LS03TAFXZA. This board resolves power failures, no-picture symptoms, and shutdown issues. Board numbers L50F7_THS and BN44-01078A. Replaces part numbers BN44-01078A and BN4401078A.

Specifications & Board Identifiers

• Part Number: BN44-01078A (BN4401078A)
• PBA / Board Numbers: L50F7_THS | BN44-01078A
• Compatible Models: QN50LS03TAFXZA
• Supported Version: AA01 — check white sticker on your board to confirm version match
• Product Type: Power Supply Board

Common TV Symptoms Fixed

• No Picture / Black Screen: TV powers on but display stays dark due to power supply failure.
• Power Issues: TV shuts off unexpectedly, won't turn on, or cycles on and off repeatedly.
• Audio / Input Failure: TV has sound but no image, or inputs fail to respond due to inadequate power delivery.
• Smart Hub / Wi-Fi Errors: Smart features become unstable or unresponsive due to power irregularities.

Fitment & Ordering Guidelines

• Verify the white sticker part number on your existing board matches BN44-01078A or BN4401078A before ordering.
• Confirm your TV model suffix and version code match — check the label on the back of your TV.
• Basic electronics experience is recommended for installation.
• Looking for other parts for this TV? Search QN50LS03TAFXZA compatible parts

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We want you to be 100% satisfied with your purchase. Items can be returned or exchanged within 30 days of delivery.